Device for detecting, cooling, and lubricating hot journals.



P. J. MURRAY.

DEVICE FOR DETECTING, COOLING, AND LUBRICATING HOT JOURNALS.

APPLICATION FILED JAN. 3|.19l7- I Patented May 29, 1917. ig 'yi.

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1 I atfozwzq PAUL J. MURRAY, 01 OSWEGO, NEW YORK.

Specification of 'Letters Patent.

Patented May 29, 1917.

Application filed January 31, i917. Serial no. 145,681.

To all whom it may concern Be it known that I, PAUL J. MURRAY, a citizen of the United States, residing at Oswego, in the county of Oswego, State of New York, have invented a new and useful Device for Detecting, Cooling, and Lubricating Hot Journals; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to a device for detecting, cooling and lubricating hot journals on railway trains, and has for its object to provide a device of this character which is connected to the air-brake system and embodies novel features of construction whereby a jet of air is automatically released and caused to play upon a heated journal for the purpose of cooling the same, lubricant being simultaneously supplied to the journal so that in most instances the train can proceed without interruption to its destination.

Further objects of the invention are to provide a device of this character which can be easily installed upon standard railroad equipment and used in connection withthe conventional air-brake systems, which is thoroughly dependable in its operation, which will simultaneously cool and lubricate a moderately heated journal without applying the air-brakes, and which will cause the air-brakes to be gradually applied and the train brought to a stop if the journal is sufficiently hot to need immediate attention.

lVith these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawings, in

which 2- Figure 1 is a side elevation of one end of a railway car having the device for detecting, cooling and lubricating hot journals applied thereto.

Fig. 2 is a perspective view of the attachment, showing it as removed from the truck.

-Fig. 3 is an enlarged longitudinal sectional View through the nozzle which is applied to the journal box.

Fig. 4 is a similar View showing a slight modification.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

For the purpose of illustration the invention is shown as applied to the truck A of a car B, said car being equipped with the conventional air-brake system, of which the numeral 1 designates the air-pipe. The end of the car is shown as provided with the usual coupling 2 and air-hose3.

Any suitable arrangement of jointed pipes or flexible hose may be provided for connecting the nozzles at the journal boxes to the air-pipe 1'. In the present instance a pipe extends transversely across the top of the truck A, the middle of the pipe being provided with a Tconnection 5 which engages a nipple 6 at one end of a flexible hose 7 the opposite end of the flexible hose being provided with a nipple 8 which engages a T-connection 9 interposed in the length of the air-brake pipe 1'. The nipples 6 and .8 preferably have right and left threads, respectively, so that there is no difficulty in placing the flexible hose 7 in position or removing it therefrom, The ends of the transverse pipe 4 communicate with the longitudinally extending pipes 10 which are arranged upon opposite sides of the truck A and lead to nozzles 11 which are mounted upon the journal boxes 12. i The nozzles 11 are arranged in. such a manner as to discharge a jet or jets of air upon the journals for the purpose of cooling them in the event they may become heated. As shown by Fig. 3, the air pipes 10 communicate with the nozzles 11 at one side projecting through the sides of the journal boxes and being closed by fuse caps 13 so that under normal conditions there is no escape and Waste of air. Each fuse cap is provided with a small aperture filled with a fuse 14 having a composition which will melt at a comparatively low temperature, and a large aperture filled with a-fuse 15 having a composition which will melt at a higher temperature. If one of the journals begins to get heated, the fuse 14 of the smaller aperture will melt and allow a small jet of air to play upon the journal, although the amount of the escaping air is insufficient v the jet of air.

to cause an application of the air-brakes. However, if one of the journals becomes so hot as torequire immediate attention, the

the provision of means whereby lubricant is automatically supplied to the heated journal when the small fuse 14 melts and permits the play of a small jet of air upon thevjournals. This simultaneous cooling and heating of the journal will in most instances remedy the trouble and enable the train to proceed to its destination without stopping. In Fig. 3 an oil cup 16is shown as applied to the top of the nozzle 11 and arranged to communicate with a lateral oil duct 17 in the fuse cap or plug a 13. r This oil duct 17 leads to the opening of the small fuse 14 and is normally sealed by the said fuse. However, when this fuse melts, it will be obvious that the oil or lubricant within the oil cup 16 will flow by gravity into the small opening of the fuse cap .and be sprayed upon the heated journal by Lack of lubricant is generally the cause of a heated journal, and by thus supplying lubricant to the journal and cooling, the same with a jet of air before it becomes sufliciently hot to necessitate immediate attention, the train will inmost in stances be able to proceed to its destination without a stop.

The fuse cap or plug may be applied to f the nozzle in any suitable manner. In Fig. 3 .it is shown as fitted within the end of the nozzle and formed with a threaded stem 16 which is engaged by a removable flanged cap 17 at the rear end of the nozzle. The fuse cap 18 is shown as provided with a flange 13 which may cooperate with a shoulder 18 on the nozzle to clamp the nozzle in position upon the journal box, packing 19 being interposed between the said flange 13 and the walls of the journal'box so as to provide a tight joint therewith. The discharge end of the nozzle is thus tightly sealed at all times, except when the journal becomes heated to such an extent as to cause one or both fuses to melt.

A slight modification is shown by Fig. 4, in which the lubricant is drawn by suction from an oil well 20 arranged under the nozzle. This modified nozzle 11 has the discharge end thereof closed by a fuse cap 13 which has a threaded engagement therewith,

said fuse cap being formed with a small aperture normally closed by a fuse 14 having a composition which will melt at a comparativelylow temperature, and also with a larger aperture closed. by a fuse 15" having a composition which temperature. The oil feed pipe 21 leads from th bottom of the oil well 20 to a point adjacent the opening of the small fuse 14. When the journal becomes slightly heated the fuse 14 will melt and thereby cause a small jet of air to play upon the journal. The escape of air will not be sufficient to cause an application of the air-brakes, although the velocity of the air as it passes over the end of the oil supply pipe 21 will draw the oil through the same and spray it upon the journal. This will ordinarily will melt at a higher remedy the difficulty, although if the journal should become so hot as to require 1mmediate attention the larger fuse 15 will melt, whereupon the escape of air will be sufficient to cause an application of the airbrakes.

' The fuses are preferably larger at their inner ends than at their outer ends so that there is no possibility of their being prematurely blown out of the fuse caps by the heavy air pressure of the air-brake system.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

1. The combination with a railway car including its truck and air-brake system, of a nozzle applied to a journal box of the truck and in communication with the air-' brake system, a fuse member normally closing the nozzle but adapted to melt and permit a jet of air to' play upon the journal when the journal becomes heated, and means for automatically supplying a lubricant to the. journal when the fuse melts.

2. The combination with a railway car including its truck and air-brake system, of

a nozzle applied to a journal box of thetruck and in communication with the airbrake system, a'fuse member sealing the nozzle but adapted to melt and permit a jet of air to play upon the journal when it becomes heated, and means for causing the escaping air to spray the journal with lubricant. x

The combination witha railway car including its truck and air-brake system, of

a nozzle applied to a journal boxof the truck and in communication with the airbrake system, a-lubricant reservoir carried by the-nozzle, and a fuse member normally sealing the nozzle but arranged to melt and permit a jet of air to play upon the journal when it becomes heated, the said jet of air carrying the lubricant from the reservoir to the journal.

4. The combination with a railway car including its truck and air-brake system, of anozzle applied to the journal box of the truck and in communication with the airbrake system, an oil cup carried by the nozzle, a fuse cap closing the discharge end of the nozzle and formed with a jet opening closed by a fuse, eating with an oil duct which is in communication with the oil cup and is normally sealed by the fuse, said fuse being adapted to melt when the journal becomes heated to permit the escape of the air and oil.

5. The combination with a railway car including its truck and air-brake system, of

a nozzle applied to a journal box of the truck and in communication with the airbrake system, a cap closing the discharge end of the nozzle and formed with a jet opening closed by a fuse adapted to melt and permit the escape of air when the journal becomes heated, an oil reservoir, and an oil supply pipe leading from the oil reservoir to a point adjacent the jet opening of the fuse cap.

6. The combination with a railway car including its truck and air-brake system, of a nozzle applied to a journal box of'the truck and in communication with the airbrake system, fuse means normally sealing the flap and constructed to permit a small quantity of air to escape and play upon the journal when the latter is slightly heated and to subsequently permit the escape of a large quantity 1 of air and cause the air brakes to be applied when the journal becomes hot, and means for supplying lubrisaid jet opening communiv cant to the journal as the air is released and permitted to play upon the same.

7. The combination with a railway car including-its truck and air-brake system, of a nozzle applied to a journal box of the truck and in communication with the airbrake system, a fuse cap closing the dis charge end of the nozzle and provided with a small aperture and a large aperture, fuses closing the apertures, the fuse of the small aperture being of a composition which will melt at a lower temperature than that of the large aperture, and lubricant supply means controlled by the melting of one of the fuses.

8. The'combination of a railway car including its truck and air-brake system, of a nozzle applied to a journal box of the truck and in communication with the air-brake system, a fuse cap closing the discharge end of the nozzle and formed with a jet opening, a fuse closing the jet opening and of a composition which will melt when the journal becomes heated, and lubricant supply means controlled by the melting of the fuse.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses. j

PAUL J. MURRAY.

Witnesses:

E. F. Wmrsn, E. H. FOLEY. 

